CA2350859A1 - Apparatus for generating and conducting a fluid flow, and method of monitoring said apparatus - Google Patents

Apparatus for generating and conducting a fluid flow, and method of monitoring said apparatus Download PDF

Info

Publication number
CA2350859A1
CA2350859A1 CA002350859A CA2350859A CA2350859A1 CA 2350859 A1 CA2350859 A1 CA 2350859A1 CA 002350859 A CA002350859 A CA 002350859A CA 2350859 A CA2350859 A CA 2350859A CA 2350859 A1 CA2350859 A1 CA 2350859A1
Authority
CA
Canada
Prior art keywords
generating
flow vessel
displacement
flow
vessel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002350859A
Other languages
French (fr)
Other versions
CA2350859C (en
Inventor
Johann Beller
Robert Zeller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Endress and Hauser Wetzer GmbH and Co KG
Original Assignee
Endress and Hauser Wetzer GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Endress and Hauser Wetzer GmbH and Co KG filed Critical Endress and Hauser Wetzer GmbH and Co KG
Publication of CA2350859A1 publication Critical patent/CA2350859A1/en
Application granted granted Critical
Publication of CA2350859C publication Critical patent/CA2350859C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
    • F04B43/10—Pumps having fluid drive
    • F04B43/113—Pumps having fluid drive the actuating fluid being controlled by at least one valve
    • F04B43/1133—Pumps having fluid drive the actuating fluid being controlled by at least one valve with fluid-actuated pump inlet or outlet valves; with two or more pumping chambers in series
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06—Control using electricity
    • F04B49/065—Control using electricity and making use of computers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Measuring Volume Flow (AREA)
  • Reciprocating Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

The apparatus comprises a displacement pump with at least one flow vessel, with a pump drive, and with a support means for holding the flow vessel. Furthermore, the apparatus comprises a measuring arrangement responsive to the displacement motions performed by the flow vessel, wherein said displacement motions are picked up by a pressure sensor diposed at the flow vessel or by a strain sensor disposed at the support means. The measuring arrangement serves to sense an actual displacement motion of the flow vessel robustly and reliably, and to deliver a measurement signal representative of this motion. The signal is particularly suited for generating a flow rate estimate representative of the instantaneous volume flow rate and/or for generating a status signal signaling a current operational status. Further, a method is disclosed which supplies information.serving to monitor such an apparatus. The apparatus is suitable for using in a sampler.
CA002350859A 2000-06-28 2001-06-15 Apparatus for generating and conducting a fluid flow, and method of monitoring said apparatus Expired - Fee Related CA2350859C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP00113614A EP1167767B1 (en) 2000-06-28 2000-06-28 Flow control for a peristaltic pump
AT00113614.2 2000-06-28

Publications (2)

Publication Number Publication Date
CA2350859A1 true CA2350859A1 (en) 2001-12-28
CA2350859C CA2350859C (en) 2006-10-03

Family

ID=8169088

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002350859A Expired - Fee Related CA2350859C (en) 2000-06-28 2001-06-15 Apparatus for generating and conducting a fluid flow, and method of monitoring said apparatus

Country Status (5)

Country Link
EP (2) EP1637738B1 (en)
AT (2) ATE330122T1 (en)
CA (1) CA2350859C (en)
DE (2) DE50015594D1 (en)
ES (2) ES2261123T3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2417052B (en) * 2004-08-12 2009-12-23 Single Use Surgical Ltd Pressure monitor for peristaltic pumps
DE102009001861A1 (en) 2009-03-25 2010-09-30 Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG Method for operating an analysis device
CN101963146B (en) * 2010-10-25 2012-06-06 哈尔滨工程大学 Constant flow peristaltic pump
CN112955197A (en) * 2018-10-19 2021-06-11 豪夫迈·罗氏有限公司 Micro quantitative supply device
JP2021105392A (en) * 2019-12-27 2021-07-26 学校法人 中央大学 Pump unit, pump and method for detecting characteristics of object to be transported

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5701646A (en) * 1990-02-02 1997-12-30 Isco, Inc. Method of making a sensor
US5695473A (en) * 1994-07-27 1997-12-09 Sims Deltec, Inc. Occlusion detection system for an infusion pump
EP0986709A4 (en) * 1997-01-17 2001-05-02 Niagara Pump Corp Linear peristaltic pump

Also Published As

Publication number Publication date
EP1167767B1 (en) 2006-06-14
CA2350859C (en) 2006-10-03
ATE330122T1 (en) 2006-07-15
DE50015594D1 (en) 2009-04-23
EP1167767A1 (en) 2002-01-02
ES2261123T3 (en) 2006-11-16
EP1637738A3 (en) 2006-04-05
DE50012987D1 (en) 2006-07-27
EP1637738A2 (en) 2006-03-22
ES2323878T3 (en) 2009-07-27
EP1637738B1 (en) 2009-03-11
ATE425364T1 (en) 2009-03-15

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20170615